Cavity enhanced third harmonic generation in graphene
Cavity enhanced third harmonic generation in graphene
Graphene displays a surprisingly large third order nonlinearity. Here, we report that conversion efficiencies approaching 10–4 are possible for third harmonic generation (THG). Moreover, the atomically thin nature of graphene allows for simple integration in cavity designs to increase this even further. We demonstrate a 117-fold enhancement, of resonant vs non-resonant wavelengths in the THG from graphene due to the integration of a graphene layer with a resonant cavity. This large enhancement occurs as the cavity is resonant for both the fundamental field and the third harmonic. We model this effect using the finite difference time domain approach. By comparing our model with experiment, we are able to deduce the value of a bulk third order susceptibility of graphene of |χ(3)| = 4×10−17 (m/V)2 .
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Beckerleg, Chris
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Constant, Thomas J
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Zeimpekis, Ioannis
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Hornett, Samuel M
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Craig, Christopher
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Hewak, Daniel
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Hendry, Euan
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January 2018
Beckerleg, Chris
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Constant, Thomas J
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Zeimpekis, Ioannis
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Hornett, Samuel M
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Craig, Christopher
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Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Hendry, Euan
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Beckerleg, Chris, Constant, Thomas J, Zeimpekis, Ioannis, Hornett, Samuel M, Craig, Christopher, Hewak, Daniel and Hendry, Euan
(2018)
Cavity enhanced third harmonic generation in graphene.
Applied Physics Letters, 112 (1), [011102].
(doi:10.1063/1.4999054).
Abstract
Graphene displays a surprisingly large third order nonlinearity. Here, we report that conversion efficiencies approaching 10–4 are possible for third harmonic generation (THG). Moreover, the atomically thin nature of graphene allows for simple integration in cavity designs to increase this even further. We demonstrate a 117-fold enhancement, of resonant vs non-resonant wavelengths in the THG from graphene due to the integration of a graphene layer with a resonant cavity. This large enhancement occurs as the cavity is resonant for both the fundamental field and the third harmonic. We model this effect using the finite difference time domain approach. By comparing our model with experiment, we are able to deduce the value of a bulk third order susceptibility of graphene of |χ(3)| = 4×10−17 (m/V)2 .
&more...
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Accepted/In Press date: 17 December 2017
e-pub ahead of print date: 4 January 2018
Published date: January 2018
Identifiers
Local EPrints ID: 416881
URI: http://eprints.soton.ac.uk/id/eprint/416881
ISSN: 0003-6951
PURE UUID: 0e6e3c24-c9d4-4602-807e-6c39ab12d5b4
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Date deposited: 12 Jan 2018 17:30
Last modified: 21 Sep 2024 01:47
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Author:
Chris Beckerleg
Author:
Thomas J Constant
Author:
Samuel M Hornett
Author:
Christopher Craig
Author:
Euan Hendry
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